aicwl is an Ada library that is intended for designing high-quality industrial control widgets for Ada applications. The widgets are composed of transparent layers drawn by cairo. The widgets are fully scalable graphics. A time controlled refresh policy is supported for real-time and heavy-duty applications. The library supports caching graphical operations and stream I/O for serialization and deserialization. Ready-to-use gauge and meter widgets are provided as samples as well as an editor widget for WYSIWYG design of complex dashboards. The software is based on GtkAda and cairoada, the Ada bindings to GTK+ and cairo.

Ono is a configurable GUI system tray application from where you can easily handle Offlineimap or start any mail client, including terminal clients like Mutt. With builtin scripting language, you can even abuse Ono to serve any program without system tray support.

c++-gtk-utils is a lightweight library containing a number of classes and functions for programming GTK+ programs using C++ in POSIX environments where the user does not want to use a full-on wrapper such as gtkmm or wxWidgets. It provides classes for managing the lifetimes of GTK+ widgets and windows that will make GTK+ exception safe, functions to make single instance programs where restarting will bring up the existing instance, smart pointer classes for memory management, thread-safe signal/slot classes with automatic disconnection, classes for using std iostreams with files opened with Unix file descriptors, functions for connecting a callback object and a Unix file descriptor to the main loop with provision for automatic disconnection, classes and functions for inter-thread communication, some convenience pthread wrapper classes., a class encapsulating anonymous Unix pipes, a class to reassemble UTF-8 sent over pipes and sockets, and classes for printing Postscript files and plain text using the GTK+ print system.

PAC provides a GUI to configure SSH and Telnet connections, including usernames, passwords, EXPECT regular expressions, and macros. It is similar in function to SecureCRT or Putty. It is intended for people who connect to many servers through SSH. It can automate logins and command executions.

Gwyddion is a modular SPM (Scanning Probe Microsope) data visualization and analysis tool. It can be used for all most frequently used data processing operations including: leveling, false color plotting, shading, filtering, denoising, data editing, integral transforms, grain analysis, profile extraction, fractal analysis, and many more. The program is primarily focused on SPM data analysis (e.g. data obtained from AFM, STM, NSOM, and similar microscopes). However, it can also be used for analyzing SEM (scaning electron microscopy) data or any other 2D data.

DeforaOS Camera is a simple webcam or camera capture application. It is meant to be used like a camera application on embedded and telephony devices featuring a video capture device, but also works on regular desktops.

Sunflower is a small and highly customizable twin-panel file manager for Linux with support for plugins. It is intended to be an easy-to-use and powerful file manager that seamlessly integrates into the GNOME desktop environment.